1.

SI unit of resistivity is

Answer»

`ohm//metre`
ohm-metre
`ohm//(metre)^3`
`ohm//(metre)^2`

Solution :As RESISTIVITY of the material of a resistor of LENGTH l, cross section area A and resistance R is given by L `p= (R.A)/l`, HENCE SI unit of resistivity in ohm metre (`Omega m`)


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